Crescent chair



FIG. 1 is a left side front perspective view of a crescent chair showing the new and ornamental design;

FIG. 2 is a right side front perspective view of the crescent chair of FIG. 1;

FIG. 3 is a rear view of the crescent chair of FIG. 1; and,

FIG. 4 is a bottom plan view of the crescent chair of FIG. 1. 

The ornamental design for a crescent chair, as shown and described. 